Question

Help needed on C++ program:

Program Description:

Complete the Ship, CruiseShip, and CargoShip program (#12 in the 9th edition of the text).

Read the specific method requirements in the text.

Specific Requirements:

• Create the Ship class.

• Create CruiseShip and CargoShip classes that are derived from Ship.

• Create a small tester cpp file that has an array of Ship pointers (one each of Ship,

CruiseShip, and CargoShip). The program steps through the array, calling each object’s print method.

• No user input is required for this program.

Example output:

Name: Lollipop

Year built: 1960

----------------------------

Name: Disney Magic

Maximum passengers: 2400

----------------------------

Name: Black Pearl

Cargo capacity: 50000 tons

----------------------------

Press any key to continue . . .

Answer 1

Screenshot

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Program

Ship.h

#pragma once
#include<iostream>
#include<string>
using namespace std;
//Create a class Ship
class Ship {
//Attributes
private:
   string shipName;
   int builtYear;
//Member functions
public:
   //Default constructor
   Ship();
   //Parameterized constructor
   Ship(string name,int year);
   //Setters
   void setName(string name);
   void setYear(int year);
   //Getters
   string getName();
   int getYear();
   //print method
   virtual void print();
};

Ship.cpp

//Ship implementation
#include "Ship.h"
//Default constructor
Ship::Ship() {
   shipName = "";
   builtYear = 1450;
}
//Parameterized constructor
Ship::Ship(string name, int year) {
   shipName = name;
   if (year >= 1450) {
       builtYear = year;
   }
   else {
       builtYear = 1450;
   }
}
//Setters
void Ship::setName(string name) {
   shipName = name;
}
void Ship::setYear(int year) {
   if (year >= 1450) {
       builtYear = year;
   }
   else {
       builtYear = 1450;
   }
}
//Getters
string Ship::getName() {
   return shipName;
}
int Ship::getYear() {
   return builtYear;
}
//print method
void Ship::print() {
   cout << "Name: " << shipName << endl;
   cout << "Year built: " << builtYear << endl;
}

cruiseShip.h

#include "Ship.h"
//Create a class CruiseShip
class CruiseShip : public Ship{
   //Attributes
private:
   int passengerCapacity;
   //Member functions
public:
   //Default constructor
   CruiseShip();
   //Parameterized constructor
   CruiseShip(string name, int year,int capacity);
   //Setters
   void setCapacity(int capacity);
   //Getters
   int getCapacity();
   //print method
   virtual void print();
};

CruiseShip.cpp

#include "cruiseShip.h"
//Default constructor
CruiseShip::CruiseShip() {
   passengerCapacity = 0;
}
//Parameterized constructor
CruiseShip::CruiseShip(string name, int year, int capacity) :Ship(name, year) {
   if (capacity < 0) {
       passengerCapacity = 0;
   }
   else {
       passengerCapacity = capacity;
   }
}
//Setters
void CruiseShip::setCapacity(int capacity) {
   if (capacity < 0) {
       passengerCapacity = 0;
   }
   else {
       passengerCapacity = capacity;
   }
}
//Getters
int CruiseShip::getCapacity() {
   return passengerCapacity;
}
//print method
void CruiseShip::print() {
   cout << "Name: " << getName() << endl;
   cout << "Maximum passengers: " << passengerCapacity << endl;
}

CargoShip.h

#pragma once
#include "Ship.h"
//Create a class CargoShip
class CargoShip : public Ship {
   //Attributes
private:
   int cargoCapacity;
   //Member functions
public:
   //Default constructor
   CargoShip();
   //Parameterized constructor
   CargoShip(string name, int year, int capacity);
   //Setters
   void setCapacity(int capacity);
   //Getters
   int getCapacity();
   //print method
   virtual void print();
};

CargoShip.cpp

#include "CargoShip.h"
//Default constructor
CargoShip::CargoShip() {
   cargoCapacity = 0;
}
//Parameterized constructor
CargoShip::CargoShip(string name, int year, int capacity) :Ship(name, year) {
   if (capacity < 0) {
       cargoCapacity = 0;
   }
   else {
       cargoCapacity = capacity;
   }
}
//Setters
void CargoShip::setCapacity(int capacity) {
   if (capacity < 0) {
       cargoCapacity = 0;
   }
   else {
       cargoCapacity = capacity;
   }
}
//Getters
int CargoShip::getCapacity() {
   return cargoCapacity;
}
//print method
void CargoShip::print() {
   cout << "Name: " << getName() << endl;
   cout << "Cargo capacity: " << cargoCapacity << " tons"<<endl;
}

Test.cpp

//Header files
#include "Ship.h"
#include "CargoShip.h"
#include "cruiseShip.h"
#include <iostream>
#include<string>
using namespace std;
//Test
int main()
{
   //Create pointer array
   Ship *arr[3] = { new Ship("Lollipop", 1960),new CruiseShip("Disney magic", 1961, 2400),new CargoShip("Black pearl", 1962, 5000) };
   //Display values
   for (int i = 0; i < 3; i++) {
       arr[i]->print();
       cout << "---------------------" << endl;
   }
}

Output

Name: Lollipop
Year built: 1960
---------------------
Name: Disney magic
Maximum passengers: 2400
---------------------
Name: Black pearl
Cargo capacity: 5000 tons
---------------------